Drawing-knife.



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(Application flied may e, 1901.,

f (No Manel.)

aumento@- v www UNITED STATES PATENT OEEICE. f

SCOVILL S. ATKINS, OF YALESVILLE, CONNECTICUT, ASSIGNOR TO WILLIAM A. KENDRICK, OF YALESVILLE, CONNECTICUT.

DRAWING-KNIFE.

` SPECIFICATION forming part of Letters Patent No. 690,222, dated December 31, 1901.

` Application filed May 6, 1901I Serial No. 58,932. (No model.)

To all whom it may concern,.- Be it known that I, ScovILL S. ATKINS, a Icitizen of the United States, residing at Yalesville, in the county of New Haven and State of Connecticut, have invented certain new and usefullmprovementsinDrawing-Knives; andI do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the figures of reference marked thereon, which form a part of this specification.

My invention relates to drawing-knives; and it has for its object to provide an improved construction for attaching the handles to the shanks of the drawing-knife blade whereby the handles can be readily adjusted to various positions and be securely held in whatever position' to which they may be adj usted.

To the accomplishment of the foregoing and such other objects as may hereinafter appear, the invention consists in the construction and in the combination of, parts hereinafter particularly described, and then sought to be clearly defined by the claims, reference being had to the accompanying drawings, forming a part hereof, and in which- Figure 1 is a side view of the drawingfknife, showing one of the handles adjusted to a position parallel with and in front of the blade and the other handle standing at right angles thereto, the dotted lines indicating a third position to which the handles may be adjusted. Fig. 2 is a section on they line a: of Fig. 1. Fig. 3 is a side view of a portion of one of the shanks with the handle applied in one position; and Fig. 4 is a side view of aportion of one of the Shanks, showing the ear at its end formed with the recesses to receive a formed in front of the opening 4with agroove or recess 5 to receive a portion of the shank of the handle and at a point opposite to the recess with another recess 6 to receive a part of the handle-shank and with a socket 7 to receive the bent or inturned end of the handle-shank when the handle is in position to extend forwardly and .at right angles to.

the drawing-knife blade. Each ear is also formed with recesses 8 opposite to eachother at opposite sides of the opening 4 in the ear, which recesses will receive the handle-shank when the handle is turned inwardly parallel with and in front of the drawing-knife blade, as indicated by full lines in Fig. 1 of the drawings, and also when the handle is turned outwardly and parallel with the drawing-knife blade, as indicated by dotted lines in Fig. l of the drawings. minates at its outer end in a concave portion 9,V which is designed to receive the bent or inturned end of the shank of the handle when in either of the two positions last mentioned, said concave portions serving as sockets for such inturned-end of theshank, and thus assisting in preventing the handles from turning and also from slipping out of the eye of the clamping-bolt when the nut on the same is loosened, and the recesses formed in the face of the ears will tend to prevent lateral movement of the handles and assist in insuring the tight clamping of the handles to the Shanks of the drawingfknife blade.

The handles are designated by the numeral 10, each handle having a rod 11 passed longitudinally through the same, one end of which is upset against a metal washer 12, set

Each of the recesses 8 ter? into the outer end of the handle, the opposite end of the rod projecting beyond the inner end of the handle, so as to form a shankl to the handle which will lie in some one of the recesses formed in the ears of the shanks to the drawing-knife blade, as before indicated, the extreme end of the rod being turned or bent inwardly, so as to form a stud or projection V13, which will lie within one of the sockets previously described. Upon the shank portion of the handle is mounted a clamping-bolt 14, through the head of which is formed a lateral opening designed to receive the shank IOC) portion of the handle,said opening forming an eyebolt of this clamping-bolt. The threaded portion of the clamping-bolt passes through the opening 4, formed in each ear of the drawing-blade shank, and has a thumb-n nt l5 applied thereto, which will serve to clamp the handle to the shank of the drawing-knife blade when the nut is tightened, a Washer 16 being interposed between the thumb-nut and the ear of the drawing-knife blade, as indicated clearly in Fig. 2 of the drawings. The stud or projection 13 at the end of the handle-shank also serves to prevent the eyebolt from slipping oif the shank when the parts are loosened for the purpose of changing the position of the handles. When the handles are to be adjusted, the nut on the clampingeyebolt is loosened and the handle turned or shifted, so as to bring the shank portion in the desired recess in the ear of the shank to Athe drawing-knife blade, and then the nut is simple in construction, not liable to get out of Wo1kingorder,and admit of easy and quick manipulation of the same.

I have described with particularity What I consider to be the preferred details of construction and arrangement of the several parts; but it is obvious that changes can be made in such details and essential features of my invention still be retained.

Having described my invention and set forth its merits, what I claim is- 1. In an edge-tool, the combination with the tool-blade having a shank formed With an opening through it and having recesses formed in its face, of an adjustable handle having a shank to iit in the recesses of the blade-shank, an eyebolt passing through the openingvin the blade-shank and having the shank of the handle passed through its eye, and a nut applied to the eyebolt to clamp the parts together, substantially-as described.

2. In an edge-tool, the combination with the tool-blade having a shank formed with an opening through it and having recesses formed in its face and provided with sockets at the edge of some of the recesses, of an adjustable handle having a shank to it in the recesses of the blade-shank and a stud or projection to fit in the socket of the same, an eyebolt passing through the opening in the blade-shankcand having the shank of the handle passed through its eye, and a nut applied to the eyebolt for clamping the parts together, substantially as described.

3. In an edge-tool, the combination with a tool-blade having a shank formed with an opening through it and also formed with a socket,of an adjustable handle havingashank provided with a stud or projection to fit in the socket of the blade-shank, an eyebolt passing through the opening in the bladeshank and having the shank of the handle passed through its eye, and a nut applied to the eyebolt for clamping the parts together, substantially as described.

In'testimony whereof I affix my signature in presence of two witnesses. v

SCOVILL S. ATKINS. Witnesses:

WINFIELD S. HorcHKIss, CURTIS A. DooLITTLn. 

